The position of a particle is given by the expression x = 2.00 cos (2.00πt + 2π/5), where x is in meters and t is in seconds.
a) Determine the frequency
b) determine the period of motion
c) determine amplitude of motion
d) determine phase constant
e) determine position of particle at t = 0.310
The equation in which a particle undergoes SHM (Simple Harmonic Motion) is:
Where A is the amplidude is the angular frequency and is the phase constant
x = 2.00 cos (2.00πt + 2π/5)
Therefore,
Angular Frequency: 2π
Phase Constant: 2π/5 (which already answers part e for you)
Amplitude: 2.00 (which already answers part c for you)
A. To find the frequency:
= 2πf
ω/2π = f
ω = 2π
So, f = 2π/2π = 1hz (hz = hertz)
B. To find the period:
Since we have the frequency and it's one, the period of motion would be 1s (s = seconds)
e. To find the position of the particle, we'll just plug and chug this since we already have what we need:
=
=
=
So the answer is:
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